多波段海洋内波SAR图像特征分析  

Analysis of Internal Wave SAR Image with Multi-frequency

作　　者：范开国[1,2] 黄韦艮[1] 贺明霞[2] 傅斌[1] 

机构地区：[1]国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室,浙江杭州310012 [2]中国海洋大学海洋遥感教育部重点实验室,山东青岛266071

出　　处：《海洋通报》2008年第6期110-114,共5页Marine Science Bulletin

基　　金：江苏省社会发展项目(BS2006554)

摘　　要：利用SIR-C/X-SAR南海海域多波段数据,分析了海洋内波SAR图像特征与雷达波段的关系。对上升型和下降型的海洋内波SAR图像,内波图像特征在X波段最为明显,C波段次之,L波段最弱。利用布拉格共振散射理论分析了内波图像特征在不同波段存在差异的原因。基于M4S海面微波成像仿真软件,模拟分析了不同波段的海洋内波SAR图像特征,模拟分析结果与数据分析结果吻合较好。The relationship between the frequency and SAR image of intemal wave is discussed based on the SIR-C/X-SAR multi-frequency data. For both elevation internal waves and depression internal waves, the feature of internal wave is significantly distinct in both X band and C band, while L band is the least. Also, the reason for the similarity between C band and L band but above both bands different from L band is explained by Bragg resonant scattering theory. Subsequently, we give the simulated SAR image of internal wave under the given program of M4S, and the result is also coincident with the analysis.

关 键 词：SIR-C/X-SAR 多波段 海洋内波 SAR 

分 类 号：P731.24[天文地球—海洋科学] TP79[自动化与计算机技术—检测技术与自动化装置]